Home / 47,046.72-70,591.64-20,400.88

Finding the Fourth Proportional to 47,046.72, 70,591.64 and 20,400.88

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Solution

The fourth proportional to 47,046.72, 70,591.64 and 20,400.88 is: 30,610.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,046.72 : 70,591.64 = 20,400.88 : x
  2. Step 2: Convert to fraction form
    47,046.72/70,591.64 = 20,400.88/x
  3. Step 3: Cross multiply
    47,046.72x = 70,591.64 × 20,400.88
  4. Step 4: Simplify right side
    47,046.72x = 1,440,131,576.64
  5. Step 5: Solve for x
    x = 1,440,131,576.64/47,046.72
  6. Step 6: Final answer
    x = 30,610.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.